Gotta love barter, 20 mins of computer work and a promise for help with the eventual (read its never gonna get done lol) replacement of a wood and corrugated plastic porch roof got me a Marlin 122.
The book: "Marlin Firearms: A History of the Guns and the Company That Made Them" states their model 122 auto-safe .22 single shot bolt action was made from 1962 thru 1965, and that 5648 were made in that time frame. The model 122 is the same as Sears models 103.274, 103.275, and 103.2751.
Isn't she pretty?